IN2015DN01917A - - Google Patents
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- Publication number
- IN2015DN01917A IN2015DN01917A IN1917DEN2015A IN2015DN01917A IN 2015DN01917 A IN2015DN01917 A IN 2015DN01917A IN 1917DEN2015 A IN1917DEN2015 A IN 1917DEN2015A IN 2015DN01917 A IN2015DN01917 A IN 2015DN01917A
- Authority
- IN
- India
- Prior art keywords
- coal
- heat
- modified
- pulverized coal
- self heating
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
- C21B5/003—Injection of pulverulent coal
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
- C21B7/163—Blowpipe assembly
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Blast Furnaces (AREA)
Abstract
To reduce operation costs of a blast furnace and reduce pig iron production costs. A pulverized coal injection device (5A) is configured so as to inject pulverized coal together with heated and compressed injection air from a tuyere (8) in a blast furnace main body (2) and uses as the raw material for the pulverized coal modified coal that has been modified from low quality coal and has self heating properties. A heat exchanger (25a) is provided as a heat transfer means that transfers heat from the self heating action of this modified coal to sites that require heat. This heat exchanger (25a) exchanges heat between the heat from the self heating action of the modified coal that passes through a pulverized coal supply pipe (22) and for example air injected into an injection air feed device (23) and heats the injected air. The pulverized coal injection device may also comprise a deactivation means that deactivates the modified coal to a level at which a prescribed amount of self heating action remains.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012207274A JP6012360B2 (en) | 2012-09-20 | 2012-09-20 | Pulverized coal blowing device, blast furnace equipment equipped with the same, and pulverized coal supply method |
PCT/JP2013/074404 WO2014045946A1 (en) | 2012-09-20 | 2013-09-10 | Pulverized coal injection device, blast furnace comprising same, and pulverized coal supply method |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2015DN01917A true IN2015DN01917A (en) | 2015-08-07 |
Family
ID=50341260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN1917DEN2015 IN2015DN01917A (en) | 2012-09-20 | 2013-09-10 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20150225804A1 (en) |
JP (1) | JP6012360B2 (en) |
KR (1) | KR101648686B1 (en) |
CN (1) | CN104641002A (en) |
DE (1) | DE112013004589T5 (en) |
IN (1) | IN2015DN01917A (en) |
WO (1) | WO2014045946A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9556497B2 (en) * | 2012-01-18 | 2017-01-31 | Mitsubishi Heavy Industries, Ltd. | Blast furnace |
JP6551471B2 (en) * | 2016-07-29 | 2019-07-31 | Jfeスチール株式会社 | Blast furnace operation method |
JP6551470B2 (en) * | 2016-07-29 | 2019-07-31 | Jfeスチール株式会社 | Blast furnace operation method |
CN107119160A (en) * | 2017-07-10 | 2017-09-01 | 中冶华天南京工程技术有限公司 | A kind of blast-furnace coal powder injection method preheated with compressed gas and system |
CN107763651A (en) * | 2017-09-14 | 2018-03-06 | 云南中翼鼎东能源科技开发有限公司 | The method and its coal supply system of a kind of boiler coal feeding |
CN112725556B (en) * | 2021-01-19 | 2022-06-28 | 付光明 | Method and device for heating pulverized coal by using blast furnace molten iron dedusting circulating hot flue gas |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE630649A (en) * | 1962-04-05 | |||
US3240587A (en) * | 1962-12-21 | 1966-03-15 | Allied Chem | Method for injecting particulate coal into a blast furnace |
US4160663A (en) * | 1978-02-21 | 1979-07-10 | Jack Hsieh | Method for the direct reduction of iron ore |
US4528069A (en) * | 1983-04-11 | 1985-07-09 | Inland Steel Company | Solvent pretreatment of coal to improve coke strength |
JPH11310785A (en) * | 1998-04-30 | 1999-11-09 | Mitsubishi Heavy Ind Ltd | Method and apparatus for coal improvement |
CN101413038B (en) * | 2008-12-04 | 2011-03-23 | 沈阳东方钢铁有限公司 | Coal powder pure oxygen blast furnace ironmaking process and equipment thereof |
JP5759097B2 (en) * | 2009-09-07 | 2015-08-05 | 宇部興産株式会社 | Solid fuel |
JP5521494B2 (en) * | 2009-11-04 | 2014-06-11 | 新日鐵住金株式会社 | Method for reforming coal, method for producing coke and sintered ore, and method for operating blast furnace |
CN102337141B (en) * | 2010-07-16 | 2013-11-20 | 张文辉 | Method for preparation of fuel for blast furnace injection and fuel oil for transport |
CN101899542A (en) * | 2010-08-05 | 2010-12-01 | 中冶南方工程技术有限公司 | Coal injection system of blast furnace |
JP5541195B2 (en) | 2011-02-24 | 2014-07-09 | Jfeスチール株式会社 | Method for measuring particle size distribution of pulverized coal |
-
2012
- 2012-09-20 JP JP2012207274A patent/JP6012360B2/en not_active Expired - Fee Related
-
2013
- 2013-09-10 DE DE112013004589.3T patent/DE112013004589T5/en not_active Withdrawn
- 2013-09-10 CN CN201380048340.5A patent/CN104641002A/en active Pending
- 2013-09-10 US US14/428,558 patent/US20150225804A1/en not_active Abandoned
- 2013-09-10 KR KR1020157006470A patent/KR101648686B1/en active IP Right Grant
- 2013-09-10 WO PCT/JP2013/074404 patent/WO2014045946A1/en active Application Filing
- 2013-09-10 IN IN1917DEN2015 patent/IN2015DN01917A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20150225804A1 (en) | 2015-08-13 |
WO2014045946A8 (en) | 2015-03-12 |
KR101648686B1 (en) | 2016-08-16 |
CN104641002A (en) | 2015-05-20 |
WO2014045946A1 (en) | 2014-03-27 |
JP2014062292A (en) | 2014-04-10 |
KR20150040361A (en) | 2015-04-14 |
DE112013004589T5 (en) | 2015-06-11 |
JP6012360B2 (en) | 2016-10-25 |
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